WASHINGTON (AP) — Millions of immigrants benefiting from President Barack Obama's executive actions could get a windfall from the IRS, a reversal of fortune after years of paying taxes to help fund government programs they were banned from receiving.

Armed with new Social Security numbers, many of these immigrants who were living in the U.S. illegally will now be able to claim up to four years' worth of tax credits designed to benefit the working poor. For big families, that's a maximum of nearly $24,000, as long as they can document their earnings during those years.
Some Republicans are labeling the payments "amnesty bonuses," one more reason they oppose Obama's program shielding millions of immigrants from deportation.
"I represent hard working, law-biding Texans," said Rep. Sam Johnson, a senior Republican on the House Ways and Means Committee. "I think these amnesty rewards, and that's what they are, need to be stopped."

Advocates argue that many of these immigrants pay taxes, so they should be able to claim the same tax credits as anybody else. Over the past decade, immigrants in the U.S. illegally have paid an estimated $100 billion in Social Security payroll taxes, even though few will ever be able to collect benefits, said Stephen Goss, Social Security's chief actuary.

Obama has issued executive orders shielding about 4 million immigrants from deportation. Some were brought to the U.S. as children; others are parents of children who are either U.S. citizens or legal residents.

Republicans in Congress oppose Obama's actions and are trying to use a funding bill for the Department of Homeland Security to overturn them. Democrats are resisting, resulting in a stalemate that is threatening to shut down the department.
Funding for the department, which oversees immigration enforcement, runs out Feb. 27.

The dispute over tax credits illustrates the complicated relationship that many immigrants have with the U.S. tax system. Social Security estimates that immigrants living in the country illegally work at about the same rate as the rest of the population, even though federal law bars them from employment.

In general, they are less likely to pay federal taxes. Those who do have been boosting Social Security's finances for years.

There are an estimated 11 million to 12 million immigrants in the U.S. illegally. At least half are paying income and payroll taxes, even though few have valid Social Security numbers, according to the nonpartisan Congressional Budget Office.

By law, you must have a Social Security number to work in the U.S. But millions of people work without them.

Some work in the underground economy and do not report their income to the government. For those who work and pay taxes, the IRS provides them with an Individual Taxpayer Identification Number (ITIN). Since 1996, the IRS has issued 21 million of these numbers. About one-quarter of them are still in use, the agency says.

The IRS accepts these tax returns without reporting the taxpayers to immigration authorities, IRS Commissioner John Koskinen said. That encourages the workers to pay taxes.

"We don't enforce the Social Security laws, we don't enforce the immigration laws," Koskinen said of his agency. "In fact, the reason illegal immigrants file taxes with us is they know we aren't sharing that data with anybody. We treat it as taxpayer-protected information."

Even if these immigrants pay taxes, they are ineligible for most federal programs. They cannot legally get food stamps, unemployment benefits, Pell grants or federal student loans. They cannot get Medicaid, except for emergency medical services, and are ineligible for subsidies under Obama's health law.

They can claim some federal tax breaks, if they file tax returns.But until now, they were not eligible for Social Security, Medicare or the Earned Income Tax Credit (EITC), one of the government's largest anti-poverty programs.

Obama's executive actions will offer Social Security numbers to these immigrants, something that eventually could make them eligible for Social Security and Medicare. For Social Security, you generally have to work and pay payroll taxes for 10 years before you qualify for retirement benefits.

More immediately, they can take advantage of the EITC. Last year, the credit provided low-income workers with about $70 billion.

This credit is popular among conservatives because it rewards work — the more you work, the bigger your credit, as long as your income does not exceed certain limits. It is popular among liberals because it provides cash payments to low-wage workers, even if they do not make enough money to pay federal income tax. It is, however, a complicated program to administer that generates a significant amount of improper payments, according to the IRS's own estimates.

Once the immigrants in Obama's program get Social Security numbers, they can file tax returns claiming the EITC, as long as they meet the income requirements and can document their earnings.

There's more.They also can file amended tax returns for up to three years after they were due, which means these immigrants can claim tax credits going back as far as 2011. (Tax returns for 2011 were due in April 2012).

The maximum credit for families with three or more children is about $6,000, so some families could get as much as $24,000 in credits. Koskinen said these tax returns would be processed just like any other.

"You have to do the same thing any taxpayer would do, which is you're going to file a return, say this is what I earned, these are my expenses, deductions, whatever it might be," Koskinen said. "You have to have the supporting documentation."
Some in Congress are outraged. "The administration may have blown open the doors for fraud with amnesty bonuses of more than $24,000 to those who receive deferred action," said Sen. Ben Sasse, R-Neb. "This program severely undermines the White House's lip-service to enforcing the law and would increase the burden on law-abiding taxpayers."

Advocates for immigrants say that if these workers are paying taxes, they should get the same benefits as other taxpayers.

"Let's not forget that these workers receive the lowest wages for what they contribute to their communities and local economies," said Ellen Sittenfeld Battistelli, policy analyst at the National Immigration Law Center. "What do we as a nation gain by further impoverishing them?"